Pickproof lock



Mmh 15, 193s. s. SEG/11. 2,111,098

' PIGKPRQOF Loox Filed Dec. 29, 1937 3 Sheets-Sheet l INVENTCR ATroRNEY-5 Sheets-Sheet 2 S. SEGAL PICKPROOF LOCK Filed Deo. 29, 1937 ATTORNEYMmh 15, 1933.l

March l5,V 1938. s. sEGAL l PIGKPROOE Loox Filed Dec. 29, 1937 3Sheets-Sheet 3 Tilly Z INVENTOR BY Y 7 ATToNi-:Y

Patented Mor. 15, v193s 4Luvilap s TA'rEs Samuel Segal,

55 Claims.

The present invention is generally directed to locks and is particularlyconcerned with cylinder locks of the type having a tumbler and keyreceiving rotatable barrel cooperatively associated with a s'et ofspring controlled driving members slldably disposed in a. housing of ashell independent of the barrel and in such manner that upon theinsertion of a properly mated key into vthe barrel the tumblers and the:superimposed driving members line up in a. predetermined fashion topermit appreciable rotation of the barrel relative to the shell.Cylinder locks of the type 'referred Vto are capableof being readilypicked by a skilled but unauthorized operator in the utilization ofillegal instrumentalities.. This practice is well known in the art andthe precise process employed need` not be pointed out specificallyAapart from callin'g'attention to the fact that a cylinder lock can bepicked because of the tatable barrel and its shell or casing, betweenthe lower set of tumblers andthe rotatable barrel, between the upperdriving members and the and the housing. Many attempts heretofore havebeen made toconstruct a pick proof cylindrical lock Voi' one kind oranother.V Acareful study of the prior art relating especially tovvso-called cylinder locks will bear 'out thispoint of view.

. lished time and time again* and is indisputably l recognized in actual'practice/ Consequently the 'dminatingjobjectof the 'present inventionis realized in the provision of a serviceable cylinder lock-whichactually and in practice doesresist unauthorizedi attack by picking.Therinvention has as a further object the provision of a novel v andsuccessful non-pickable lock comprising a sleeve having"circumferentiallydisposed :so-called posed between tne'bemng of thesheniond the initially trapping superimposed mushroom type drivingmembers'during sli-called tensioning" o! the barrel preparatory to theselective opera` tion of picking the lower set of tumblers. .The

1 invention h` as a further Vobjeci'the provision oi an i'mpnon-pickable cylinder lock where- Vina movable eeve having butterily`slots each havlng'a central enlarged part and oppositelyy extendingreduced parts or wings, is mounted on va .tumierreoeiviog cylindricalborrel and wherein lthe mushroom drivingmembers cooperate with the'tumblers upon insertion of a properly mated key i play or tolerancesever present between the ro.

. barrelyand between the upper driving members` i l .However as far asknow cylinder locks oi this "type can be picked. y This fact has beenestabkeyfreceivingbarrel and constitutes means i'or v'the key receivingbarrel..`

VVPATElst'rfolf/FICE' Brooklyn, Y.

Appiioation December 29, 19311 serial No. 182,340

(c1. 'io- 364) 4 into the barrel to permit adequate rotation of thelatter and wherein upon the removal of the properly mated key and in alneutral position of the barrel, the driving members areautomaticaloperations and wherein subsequently. the sleeve is rotatablydisplaced in respect to these driving members whereby the latter arecaused to be closely straddled by adjacent walls of the winged parts ofthe butterily slots of the sleeve thus causing the drivingfmembers tobeM interlocked with the sleeve and consequently 'thedriving memberscannot be raised above the outer surface of the sleeve andrbe freed'fromthe latter. by an unauthorized operator. 'I'he invention has as anotherimportant object to provide a sleeve on a key receiving barrel whichsleeve mayrotated in respect to the barrel to positively inter-Vlockwithspaced parts of the driving membersat which time the lower setof tumblers are in part or fully out ,of alinement with companionmushroom driving members and vconsequently -the sleeve in such instanceacts as closure means to Y prevent lifting of thetumblers to preventtheir projection at least in part o r in whole 'abovethe sleeve. Otherimportant objects, advantages, features, and aspects' of the' invention-willbe more4 readily understood from theteaching's of the -followingdescription considered in connection y with the' accompanying drawingsin which: butterily slots and wherein the sleeve ininterl Fig. 1 is o.longitudinal sectional view of the pick proof lock according to 'myinvention, 'howl ever showing the spring actuated driving menibers inanormal position andinterlocked with a.v A ,rotatable 'sleeve andvbarreltoprevent rotation of Fig. 2 is view similar to 1 however' illusand thedriving members or "mushroom drivers lined up with theloyvertumblers andoutside of the'sleeve whereby' the barrel maybe appreciably rotated.AFig. 3- is a sectional view taken along the line -I-SJ n.41.

ftratng a." properly mated4v key within the barrel,

.' the linelI-,J of Fig. 1.

Fig. 5 is a view similantoFlg. 4 but showing the relation of an uppermushroom driver in respect to the barrel and its. companion tumblerafter the mushroom, has been picked from the barrel but unpicked fromthe encompassing mov able sleeve.

with the key receiving bar-rel shown in perspective.

Fig. 7 is a schematic plan view of the barrel in a .neutral positionthereof in respect to the sleeveV andshowing the mushroom drivers insection.

Fig. 8 is a fragmentary enlarged sectional schematic andexaggerated viewto show the relation of a' tumbler and its companion driver when thebarrel is in a neutral position in respect to the movable sleeve.

Fig. 9 is a view similar to Fig. 'l but illustrating the barrel undertension and the relation vthereof in respect to the movable sleevepreparatory to the operation of picking.

Fig. 10 .is a view similar to Fig. 8 but illustrating the cockedrelation' of a mushroom driver when the barrel rias been slightlyrotated or placed under tension. v

such relation the attenuated of the drivers are at theextreme limit ofassociated attenuated 5 ment therewith. Fig. 6 is an exploded' view of.parts associated Fig.` 25 is aview similar to Fig. 2 `but in Fig. 24

a split movable trap or sleeve is employed of the type shown in Fig. 29.

p Fig. 26 is a front view of Fig. 2 or 25 but with 1 the mated keythereof removed.

Fig. 27 is a sectional view, taken on the line of Fig. 25 and Fig. 11 isa schematic'pla'n view showing the relation of the `sleeve with respectto the barrel and mushroom drivers when one of the mushroom drivers hasbeen picked from the barrel.

Fig. Y12 is a fragmentary butlmagnified sectional and exaggeratedvievfillustrating the relation ofthe drivers and tumblers when in theconditionrshown in Fig. 11. l

relation of the sleeve in lrespect to the barrel and mushroom driverswhen two of the mushroom drivers have been picked from the barrel.

Fig. 1'4 is a fragmentary enlarged sectional and schematic'view showingthe relation of the drivers and tumblers when two of the drivers havebeen picked.` Y Fig. 15 is a view similar to Fig. 13 but showi threedrivers picked from' the barrel.'

Fig. 16 is a view similar to Fig. 14 but`showing' the relation of thedrivers and tumblers when three of the drivers have lbeen picked fromthe barrel.

Fig. 17 'is a view similar to Fig. 15 butillustrating four driverspicked from the barrel. f

- Fig. 18 is a view similar to Fig.. 16 showing four picked drivers andone cocked or unpicked driver Fig. 29 is an exploded view showing thebarrel, thel split sleeve and associated parts thereof in Perspective ofthe form'shown in Fig. 28.

. Fig. 30 is a vertical sectional view of another embodiment accordingto thefinvention.

Fig. 31 is a perspective View ofthe lockshown in Fig. 30`and Fig.`32 isa"perspective view of the key receiving rotatable barrel shown in Fig.30 with the butterfly slotted sleeve thereof removed.

Illustrative of the several embodiments dis- Ygclosed, the cylinder lock-is .generally denoted C and comprises a casing having a cylindricalshell II spaced walls I2 bridged by fixed closure* plate I3 and defininga housing. enclosing helicoidal springs I4 mountedon cylindrical driversD1, D,

, D3, D4 and D5 slidably arranged in bores I5 of Fig. 13i is a schematicplan view shwing the?.

the housing. Shell Il includes a cylindrical bore or bearing I6 forrotatably guiding a .cylindrical sleeve llt-:having a plurality ofcircumferentially arranged so 'called butterfly slots I8 spacedlengthwise of the sleeve.

Each butterfly slot lvcomprises an enlarged circular and central cut outportion I9 and laterally extending restricted gaps or Winged openings 20and sleeve I'I is rotatably mounted 'and guided on the annular shoulders2l and 22 of the rotatable barrel generally designated .23 whichincludes a reduced shank or body 24 provided with a plurality of spacedbores 25 for slidably guiding the lower set of cylindrical tumblers T1,T2, T3,'T4 and T5. l

Integral with the forward part of casing I0 is an annular flange 26having a recess 21 in which to illustrate the relation of the driversand tumblers shown in Fig.'1'l.

Fig. 19 isa view similar to Fig. 17 however depicting all of the fivedrivers in a picked relation inf respect to the barrel but in anunpicked relation to the movable sleeve.

Fig. 20 illustrates in section and in a magnified Fig. 21 is a viewsimilar to Fig. 19 but showing and exaggerated fashion, the rela-tion ofthe` drlvall of the drivers picked from the barrel and the driving pinof the barrel is. starting to abut the sleeve .to set the latter inrotation from its previous fixed position.

Fig. 22 is an enlarged fragmentary transverse sectional view of Fig. 21showing asuperimposed driver picked from the barrel but Yunpicked inrespect to the sleeve and the barrel in rotatable p relation in respectto the driver.

Fig-23 is aview showing the relationtofthe sleeve and the drivers afterthe sleeve has been rotated to one extreme limit'by the plug and in ingslot 34 in registration with the key receiving. slot 35 of' the shank24| of the barrel4 23. The

drill resisting disc 32 embodies a lug or`key 36 fitting closely intogap 31 defined by the spaced .terminals of .the interrupted annular lip33 (see Fig. 26).

As shown disc 32 is inadvance of the hard steel floating ring 38 whichis rotatably seated and guided on the annular shoulder 22 and isarranged to freely rotate against an annular shoulder in the casingnear'l the forward 'end of integrally associated with the upstandingunauthorized attack ofthe sleeveand in effect is a guard for thesshve\which. in association with the shank 24 of thebarrel defines theannu- Y sequently the lower set of tumblers fall to their lowestposition. l

If the properly mated key K be inserted with- 'in the barrel thetumblers are raised and consequently their companion drivers are lifted.If

- the key K be properly mated with the tumblers,

e drivers are slidably forced central openings l! of the the lower partsof out of the4 expand slotted sleeve I1 while the upper parts of thealignment with the exterior surface of the sleeve;-

u llotll at the rear end ofthe sleeve il.

clearanoesbetween the drivers, sleeve,

`drivers in'respectto the sleeve,'barrel, and housmg during unnnthtrizedpicking or' attack or the.

`since the upper parts of the tumblers serve as the-driving means forthe sleeve. 'In other wordsl when a properly mated key be inserted intothe 2 barrel, the upper surface 4l of the tumblers andi lower surfaces4I of Ithe discshaped ilanges or mushrooms I! depending from thedepending'v neck or attenuated parts Il of the drivers-are in Thusthesleeve is freed of the drivers and the tumbles are in position to lockthe sleeve topermit the-latter to vbe bodily rotated with the barrel andin such event tongue Il suitably retained by ithe barrel' is alsorotated to control bolt operating means not shown.

nwto Figs. 7 to 2 4 inclusive, vit will be noted that in Fig, 1- thebarrel '23.is in a neutral' position' relative to sleeve, I1 andl thedriversD1,'D etc. 'are within the openings Il of the .butteriiy slots'Il Hence 4the plug del i ned by sleeve I1 and barrel 2l cannot be rottated unlessa properly mated key hasl been' in-` d I 'and in'suchneutral position driving pin secured to ilange 2| is centrally'in` Innga. '1 w 24 inclusive, the miei-'annee 'or and barrel have to. showvschematically the relation ofthe tumblers and` pick proof lockaccordingto the invention. f

'lhe showing ofFig..8 may be'saidto indicate a neutral position ofsleeve i'| and the .tolerances vexisting around the drivers and tumblersare taken of'to actually trap the driversl slightly yrotate the barrelto take up its play. I i' it is assumed that e play has been taken up byturning the barrel a clockwise 'direction as indicated by the'arrow inF18. 10 the drivers bemushroom l2 is caught by the sleeve and hence itcannot be elevated further, or out of the sleeve and under suchcircumstances driver Dl may be said to be picked `from the barrel butunlar gap It In other wordsff- 2l is a shield come slightly tilted andthere is a slight'clear- 5 to prevent access to the sleeve\ and cannotbe ance or onset between the drivers and tumblers eifectively utilizedduring ."Jamming by an unas shown in Fig. 9 and the drivers arecaused'to 1 authorized person to directly couplethe sleeve and tiltslightly by reason of corners 41 striking the `barrel. lower parts ofthedriv'ers. Y

As shown in Fig. 1, the cylindrical drivers If therefore an unauthorizedtool be inserted 1 Dl', D, etc. project into the enlarged circularintothe key receiving slot of the barrel to actuopenings I0 of thebutterfly slots Il. Therefore Tate any of the lower tumblers, sayforexample, -the sleeve is locked and cannotxbe rotated. The Tl 1in theattempt to pick its companion driver lower parts of several of thesedrivers also-project D1, tumbler T1 may be lifted to raise itsdriverinto -bores 25 of shank 2l. Hence the `barrel is D1 abovecorner l1,(F18. 12) that is, its mush- 15 also locked and .cannot be' rotated.` InFig. l, room 42 caninpicklng be raised above cornerll the properly matedkey K is withdrawn from the but the marginal portions thereof comeslightly barrel and consequentlysprings I4 automatiunderthe nibs 18dened by-the walls of the cally set l the superimposed drivers tointerlock adjacent gap 20 and the central opening I9 of with the sleeveand barrel as indicated and'conthe companion butterily slot I8. Hencethis. lo

picked from the sleeve and now there exists g5 a slightly Ygreateroffset between thedriver D1 fand its tumbler Tlfalthough the remainingdrivers are merely, under tension as shown-in Figs. i1 and 12.

as shown' in Figs. 13v and 14, thereof leavingo alarger offset orclearanc between the driver -l2' 2 and its tumbler Ia as sh wn and inthis instance the driver Dl also takes a similar offset positionin'respect to its tumbler T1.

Now drivers D1 and Dz havebeen raised and 45 lockedl against upwardmovement in respect to the sleeve but driver D3, D4 .and Ds remain intheir tensloned relation as clearly'evidenced by Figs.' 13 and 14'.'If'therefore driver Ds is ma,

nipulated by operating its companion tumbler 50 T3 its mushroom flangeIl may be 'raised above' 'its associated corner l1 of the barrel and insuch case it is lockedby nibs 4I and the portions ofthe wallsadjacentits winged opening 20 against upward displacement. However at 55this time thepreviously raised drivers D* and DI sorted into thebarrel.Normally therefore, with inerte-Sli! their Offset relation in to theirthekey withdrawn; the sleeve I 'I may be 'said companion tumblers andthus become furthery `to take its nei'itralV positionshownin Figs, 1Vtrapped as shown in Fig. 15. With the driversfv D1, D and D3 raisedoutofthe barrel, thereo r, mailling drivers areheld under tensioning.V18) @Having positioned drivers D1, Dz and D.

its mushroom l2 is clear of corner 41 and is oo nslderably underneaththe sides ci its oompanionf wingedA opening 20 and -at this time.themush vrooms ofthe previously raised drivers D1, D* andDl likewisehave crept further andv consider- 7o;

- ably underneath the walls 'ci' their respective wingedrslnts 20;. nshould benoted also um when driversDl, DI, D? and D* have been raisedtumblersproject into the'se central openings I9 Feeling fairly contentedthat driver D1 has 30 of the buttery'slots and are flush with the ex--now been picked", the unauthorized operator,

terior surfaceof the sleeve' (as `shown in Fig. 2*). may then start toattempt to free the n ext driver In sucnrelstion of thedriv'ers andtumb1ers the D2. Under such circumstances. tumblerl T is key K iay berotated. Therefore the barrel or manipulated by an unauthorized tool andif ,sufplug is rotated but the sleeve i1 is alsorotated eiently raisedthe companion mushroom 42 cia3.;

duiiing unauthorised attack. The initial step-in u flicking Ait totension, the barrel,- lthat is, to

from the barrel 'during picking and are in the position in Fig. 1'1,their deliendinmgg necks 42 have just aboutv entered the adjacent wingedopenings 20.

'In Figs. 19ans 20111 of mev drivrs have been picked to be clear of thebarrel but pre- -vented from being raised from the sleeve since themushroom ilanges 42 fand the body of the driver above the necks 42 nowstraddle the sides of .the winged or attenuated openings 20 of the Abutterfly slots and thus interlock with the sleeve and consequently theycannot be-raised outl of the sleeve, With all of the drivers free of thebarrel the latter may be appreciablyrotated tion of the upper drivers inrespect to their companion tumblers and the position of driving pin 45of the barrel relative to slot 46 ol.' the sleeve I'I.

Now although the necks of all of thedrivers are within gaps 2li of thebuttery slots I6 and all of the mushrooms are prevented from beingupwardly displaced because of the interlocked relation. of the 4driverswith the sleeve, the barrel still may be rotated in respectI to thesleeve and consequently as the barrel is rotated in the same direction,that is, as indicated by the arrow in Fig. 17, driving pin 45 ultimatelyreachesan end wall of slot 46 of the sleeve as shown in Fig. 2l.

With pin` 45 against an end wall of -the slot 46, rotation of the barrelwill cause the slee'ye Il to rotate in 'the same or unitary directionthat is, bodily therewith and consequently necks 43 of the drivers areultimately struck by ends 50 of the attenuated gaps' 20', that is tosay, as the sleeve is rotated, the drivers although now stationarybecome further and further trapped by the sleeve and when correspondingends 50 of the hutteriiy slots strike necks 43 neither the sleeve nor'barrel can be tamed in the samedirection since these necks now act asstops for the sleeve (see Figs. 23 and 24). In. the tumbler anddriverrelation shown in Figs. 23 and 24, the drivers cannot be removedfrom the sleeve and the' tumblers cannot be raised out of the sleevewhich ac'ts as a stop and are underneath duced gaps I9 of'butterflyslots.

It follows that even though the barrel may be rotated appreciablyalthough not sufficiently to the re` -actuatetongue 44 the requiredthrow, 'the drivers cannot be raised to a positionto be outside of thesleevein th process of picking with unauthorized means and if theattempt is made to raisethe tumblers outof the sleeve in the positionshown in Fig. 24.-, they w11] strike the s1eeve' but c ould not:A

be positioned above or through the latter.

The unauthorized operator ltherefore finds himself in 'averyuncomfortable situation even though all the drivers have beenraised'above the barrel which gives the operator an initial feeling that.he has made lconsiderable progress but ultimately finds himselfcompletely at a loss. unless of course he desires to start all overagain by revolving, the barrel in a counter direction to cause pill"y 46to rotate the sleeve lin a similar direction until reduced gaps 2IIleave necks 4 3 of th vdrivers but in such event the tumblers line up`with thedrivers and the mushrooms 42 are automatically projected intobores 25 ofthe bar;lv rel and the drivers enter circular openings I9oi.' the butterfly slots and therefore the unauthorized ..rotatestherewith.

anneesoperator-is imno better position and in fact is again at astarting point. Ii' after starting again he tensions the plug byrotating it in a counterthe butterflyA slots to receivethe necks-of theclockwise direction, and again starts, picking he will merely arrangethe other winged parts of x drivers and therefore is left with the samediv shank 24 of thel barrel and in the neutral position of the splitsleeve I'l'pins52 are centrally disposed in the slots deiined bythealined gap 53 as `indicated in Fig;- 28. Upper complement 5I is alsoprovided with a plurality of butterfly slots I8 o1' the type alluded to.to wit, comprising expandedqportions I9 merging withreduced and wingportions 2Il to cooperate with the upper drivers in a manneralreadysetforth. Hardened ring 34 is made in sections 56 and 51 in orderthat it may be conveniently assembled on the shoulder 22.

According to the form shown in Figs. 25 to 29, pins 55 selectivelycooperate with corresponding end walls 58 oi the slots formed by gaps 53to rotate the sleeve after the drivers havebeen picked from the barrelanddisposed on the exterior sur- 'face of shank 24 of the barrel wherebythe mushroom' drivers also cooperate to guide the Vrotation of thesleeve in case the mushrooms are within lgap 39 even though the driverscannot be raised above the sleeve in a manner hitherto explained. Inother aspectsfthe form according to Figs. 25 to 29 is along the lines ofthe embodi ment s'et forth in connection with Figs. 1-24 inclusive. f

According to the form 'illustrated in Figs. 30, 31 and 32cylinder lock Chas its shell II provided with a head or bushinggenerally denoted B.This bushing is of hardened or armor steel vto resist drilling and itincludes a front closure cylindrical projection 63 of a hardened orarmor' steel collar broadly denoted 64 having an an- 4 nularflange 6 5integrally merged with the rearwardly extending interruptedannularilan'ge 66 having diametrically arranged upper and lower slots.6l'and 68 respectively.

shank upf the barre1 :31's provided with an annular stop shoulder 66which cooperates with the rear end of the interrupter ilange 66 to limitthe insertion of shank .24within1collar'64 at which time the forwardpart 69 of shank 24 of the barrel is against the front'fclosureprojection 63 `which is provided with key receiving slot 34.

in registration with slot 35 of) the shank 24.`

The lower slot 68 of the collar clears the key receiving slot 35 of 'thebarrel whilesthe u pper slot 6T clears the front tumbler receiving slot25 ,of thebarel 23 and the collar 64 is ilxedly held in place on shank24 by pin means 'Ill (Fig. 32). Hence if the barrel be rotated collar 64bodily As-in the'case ci?v the form shown in Fig. 29, sleeve I1 is splitand includes the complementary sections 5I and 52-againsl;f which thesplit hard- 75 ened ring Vat rotates and of course this sleeve I'lincludes theibutteriiy slots IB of the type shown in i Fig. 29 forcooperation with driving pins 55 f xed to the shank as heretoforedescribed.

It should'be observed that the front wall 60 Vextends considerablybeyond shell Il to charac-'-A terize theannular flange ll which isintegral with. the annular wall 12 xed to the shell by suitablefastening means 13.

Ihus by the present arrangement, the metal barrel 23 made in sectionswith the front part or collar GI of drillresisting metal while the metal`'shell is also made in sections and cooperates withL bushing B whichalso is'of drill resisting material and constitutes with shell Il thelock casing,V In

other aspects, the form according to Figs. 30-32 is along the lines ofthe embodiment described in connection with Figs. 26 to 29 inclusive,

In the specification and claims, the ex/pressions tumbler or "tumblermeans refer to a tumbler pin or one or more tumbleg pins respectivelywhile ythe expressions driver or driving means" refer to a driving pinor one or more driving pins respectively while the expressionl "pintumbler is directed to include a. driving pin and a companion tumblerpin, and where'the expression mushroom ange is mentioned such Vfeaturemay be considered as a member interl- 'veninga dependingneck ora'reduced part of 4an associated driver slid'ablyguided in the casing ianda companion tumbler guided in the plug and vin case of the butterflyslotsmthe central portions thereof may be considered as enlarged orexpanded means and the wings thereof as con- -stricted or reduced means.

Variations and modications within'the scope of this invention andportions lof the improvements maybe used without others.

andas many `changes could be made in the 'above `set forth embodimentsand many widely different embodiments u1d 'be devised without dep-,t-

ing from the scope thereof, it is intended that all matter contained inthe above'- description as shown in the accompanying drawings s beinterpreted asillustrative and not in a limiting sense.-

I claim; ..1. In a cylinder lock, a casing,` a keyreceiving barrelrotatable -within said casing; a sleeve cio' drivingmeansi'ullymutjofsaid expanded por? mounted on said barrel and having anA elongated slotcomprising `an expanded and a reduced'por tion,resiliently 'controlled' driving means slidablyV guided inV said casingand projectable into said expanded portion and barrel to preventrotation 'of said barrel and sleeve and comprising a neck .projectableinto said reduced portion and having a depending angeprojectableundensaid reduced portion to prevent removal of said drivingmeans from-said sleeve,V and slidable -tumbler means within said barrelfor projecting said tion upon' insertionl of a key.V properly mated`with"said tumbler means into said bari-el whereby apart of said.tumbler means -is disposed within said expanded portion Ato permitbodily rotation of s aid sleeve and barrel relative to said `2'. In acylinder lock, aecasing, a key receiving barrel rotatable. within saidcasing, a sleve mounted on said barrel and an elongated slot comprisingan expanded and a reduced portion, driving means slidablyguided by andwithin said casirgand prolectable through said ex' panded portion and,into said barrel to prevent rotation-of said -barrel and sleevejgandcomprisingV a reduced part and a depending flange, slidl; may be made-projectable in part through .said e Y able tumbler means for liftingsaid driving meansslight rotation of the latter relative to said casingto position partsof said sleeve adjacent said reduced portion inoverlapping relation in respect to said ilange to preventremoval of saiddriving .means from said sleeve.

3. In a cylinder lock, a casingl a key receiving barrel rotatable withinsaid casing, a sleeve v mounted on said barrel and having a slotincluding an expanded and a reduced portion defining nib means, tumblermeans slidably mounted in said barrel, slidable driving means movably-guided in said casing and contacting said tumbler means and comprisinga reduced part and adepending iinge, said barrel upon slightrotationthereof and upon sufllcient elevation of said tumbler means to causesaid driving means to to remove the latter out of said barrel followingbe removed from said barrel and thus disposing r .said ilange inoverlapping relation with said nib means to prevent removal of saiddriving' means from said sleeve.

4. In a cylinder lock, a-casing, a key receiving barrel rotatable,within said casing, a sleeve Y mounted on said barrel and having anelongated77V slot comprising an expanded and a reduced portion,driving'means slidably guided within and by said casing and projectablethrough said 4expanded portion and intosaid barrel to prevent rotation'oi said barrel and sleeve and comprising a reduced part and a dependingange, and slidable tumbler means for' actuating 'said driving meanstolremove the latter out of said barrel subsequent to slight rotation ofsaid barrel in respect to said casing to positionthe sides of saidreduced portionk to st addle said reduced part and `dispose portions fsaid sleeve adjacent said: sides `in overlapping relation in respectI tosaidJ flange to prevent removal of said driving means from said sleeve.d f

5. In a cylinder lock, a casing; a key receiving barrell rotatablewithin said( casing, a.- sleeve mounted on said barrel and having aciruni-y ferentially arranged slot comprising an expanded and a reducedportion,l spring controlled driving and Lprojectable in part throughIsaid expanded portion and into said barrel to prevent rotation ofD saidsleeveland barrel and comprising a neck having a depending flange.tumbler means slidmeans slidably'guided within and byl Vsaid casing'ably guided in said barrel' and adapted to ele- `vate said driving meanseven subsequent to slight rotation 4of said barrel relative to saidcasing for 'positioning said driving means out of said barrelM Atopermit rotation ofr said barrel relative-.to said sleeve, and meanscarried by said barrel for rotatv ingsaid sleeve bodily therewith to`move -said're duced portion' of said slot towards said neck to, permitthe4 sides of said reduced portion to .str'addlesaid neck wherebyportions of. 'said sleeve adjacent saidl reduced portion overlap saidflange to prevent removal of said'idriving means from said sleeve. l

6. In a cylinder lock, a casing, a key receiving barrel rotatable withinsaid casing, a sleeve r'otat-- ably mounted on saidbarrel and having acirzumferentially .arranged slotA comprising anex`v panded and a reducedp0rtion,\spring controlled driving means slidably guided in said casingand dedfportion and into^said barrel to' preven rotation of saidsleeveand barrel `and-comprising a neck having a depending flange,tumbler means slid-3 biy guided said barrel and ddaptedfo .nrt

driving means subsequent to slight rotation.

of said barrel relative to said casing for positioning said drivingmeans out o1' said barrel to permit rotation of said barrel relative tosaid sleeve,

means associated with said barrel and 'sleeve torotatably move saidreduced portion of said slot towards said neck to permit'the/ 'sides ofsaid reduced portion to straddle said neck whereby portions of saidsleeve adjacent said reduced portion overlap said ange whereby saidsleeve is rotatably. interlocked witlr said driving means, and

means tolimit rotational displacement of said barrel and sleevewhen saidflange is out of said barrel. I'

7. In a/cylinder lock, a casing, a key receiving barrel rotatable withinsaid casing, a sleeve rotatably mounted on said barrel and having acircumferentially arranged slogfcomprising an 'expanded and a reducedportion, spring controlled driving means slidably guided in said casingand projectable in part through said expanded portion and into saidbarrel to prevent rotation of. said sleeve and barrel andcomprising aneck having a depending ilange, tumbler means slidably guided in saidbarrel for lifting said driving 2livr means even subsequent to slightrotation of said barrel-relative to said casing; for positioningsaiddriving means out of said barrel Ato permit rota-l tion of saidbarrel relative to said sleeve, and a 'lost motion connection betweensaidbarrel and sleeve to permit the barrel `to rotate relative to saidsleeve when said driving means is removed from the barrel, saidconnection having means .to permit appreciable rotation -of said sleeveupon rotation of said barrel whereby said sleeve bodily -rotates withsaid barrel, vand means to limit bodily rotational displacement of saidsleeve and barrel.

8. In a cylinder lock, a casing a key receiving barrel rotatable withinsaidcaSing, a sleeve rotatably mounted on said barrel and having .a

circumferentially arranged slot comprising an 'expanded andja' reducedportion, spring controlled driving means slidably guided in said cas-.ing and projectable vin part through said expanded portion and into.said barrel to prevent rotation of said sleeve and barrel andcomprising a neck having a depending. flange, tumbler -means slidablyguided on said barrel to lift said driving means for -positioning. saiddriving means out-of `said barrel and'said neck into said reduced -porfvtion to permit rotation of saidlbarrel relative to said sleeve, anda'lost motion,v connection between *said barrel and sleeve to permitsaid barrel to rotate relative to said sleeve, said connectioncomprising pin means carried by' said barrel and a slotarranged in saidsleeve to permit appreciable rotation of said barrel relative to saidsleeve, said last mentioned slot"'having (a"`wall adapted to be engagedby said pin means to rotate 'said sleeve during rrotation of saidbarrelat which time the lsides of said reduced portion straddle said neck andcooperate withl said flange to prevent removal of said driving meansfrom said sleeve.

9. In a cylinder lock, a casi-ng, a key receivingbarrel' rotatablewithin said casing, a sleeve rotatably guided on said barrel and Lhavinga circumferentially arranged slot comprising an expanded and a reducedportion, sprl-ng controlled drivingmeans slidably guided in said casingand projectable in part through said expandedportion and into saidbarrel to prevent .rotation of said sleeve and-barrel-and comprising anneck .having adepending ilange, tumbler means slidably guided in saidbarrel for positioningsaid driving means out'of said barrel and SaidRel;

barrel and a slot arranged in said sleeve to permit appreciable rotationof said barrelA relative to said sleeve, said last mentioned slot havinga wall adapted to be engaged by said pin means to rotate said sleeveduring rotation of said barrel whereby the sides of said reduced portionstraddle said neck and cooperate with said flange to inteock saiddriving means to prevent removal of said driving means from said sleeve,and means to limit rotational displacement of said sleeve and barrel.

10, In a lock, a casing, a barrel rotatably supported by said casing', asleeve rotatably surbler slidably guided by said barrel, and a springcontrolled slidable driving member within said c asing and movabl'yguided thereby and contact' iing said tumbler andv comprising adepending neck and a flange depending from said neck, said slidable.driving means in a locked relation ,of said, barrel and casing extendingin part into said expanded portion while said reduced portioncommunicates withl said expanded portion and extends laterally thereoffor cooperation with said neck and flange to permit rotation of saidbarrel relative to saidvsleeve and prevent withdrawal of said drivingmeans from said sleeve.

11. In a lock, a casing, a key receiving barrel rotatably supported bysaid casing, a sleeve surrounding said barrePand having acircumferentially arranged s lot 'comprising an expanded and a reducedportion, a tumbler slidably guided by said barrel, spring controlledslidable driving means movably guided Within saidJ casing and.contacting said tumbler and comprising Aa depending neck adapted Vto bereceived by said refrom said neck adapted to be `interposed between saidsleeve and barrel to prevent removal of said driving means out oil saidsleeve.

12. In a lockAIL a casing, a key receiving barrel rotatably supported by.said casing, a movable sleeve surrounding andin part spaced fromsaidbarrel and comprising a circumferentially varranged slot having anexpanded and la reduced portion, a tumbler slidablyl arranged in saidbarrel, a driving member mounted on said tumbler c andk comprising aneck adapted to be receivedv in said reduced portion and having adepending flange projectable underneath said reguced por tion, andcooperatingwitli said sleeve to prevent removal of said driving membertherefrom, and a loose driving connection :between said sleeve andbarrel.

13. In a lock,- a casing, a key receiving barrel ing said sleeve on saidbarrel, said sleeve having a circumferentially arranged slot comprisingan expanded and a reduced portion, tumbler means slidably guided by saidbarrel, and spring controlled driving means slidably guided wit-hin andby said casing and projectable into said expandf ed portionrand saidbarrel to prevent rotation of j saidsleeve andv barrel, said drivingmeans coml prising vneck means and iiange means, said barrel adapted tobe slightly rotated relative to said f sleeve to place said drivingnieans under stress,

said tumbler means adapted to be actuated to raise said driving meansout of said shank to position said dang/e means in said gap to cooperatewith portions /oi said sleeve adjacent said expanded ponti/on andreduced portion of said slot to preventf'emoval of said driving meansfrom ,Y

'iiange-projectable into said gap and underneath said reduced portion toextend beyond the sides oi the latter and cooperating therewith" toprevent removal of said driving member out ofsaid l sleeve, and a loosedriving connection for said sleeve and barrel, said neck adapted to bestraddled by the sides of said reduced portion of said l slot when saidange is disposed in said gap, said sleeve constituting closure means toprevent pro- =jection of said tumbler through said sleeve'when said neckis disposed within said reduced por-` tion.

15. In a lock, a casing, -ai key receiving barrel rotatably supported insaid casing and compris-l ing a reduced shank, a sleeve rotatablymountedon said barrel and dening with said shank a gap. a loose drivingconnection for rotatably guiding said sleeve on said barrel, said barrelhaving a circumferentially arranged slot comprising an expanded and areduced portion, tumbler means slidably guided by said bai'relf andspringcontrolled driving means slidably guided by said casing andprojeotable into said expanded portion and barrel to prevent rotation ofsaid sleeve and barrel. said driving means comprising neck means lreceiving barreLa rotatable sleeve mounted on and ange means, said,barrel adapted to, be slight.- ly rotated relative to said sleeve toplace. said vdriving means' under lstress, said tumbler means adapted tobe actuated to raise said driving means out oi said shank to positionsaid flange means lin said gap and cooperate with a portion of saidsleeve adjacent said expanded portion andr-L duced portion of said slot,said barrel adapted to be rotatedkrelative to saidI sleeve Awhen saiddriving meansisut of said shank and cause said connectiomto rotate saidsleeve upon rotation of said barrel, and means'to-nmlt bodily rotationaldisplacement of saidfsleeve and barrel.

16. Ina lock, a casing havi'ng a rotatable'key said baxrel and'provided'with a'circumferentially .arranged slot having an expanded and areduced portion. tumbler means slidably guided in' said barrel,slidably-guided driving meanamovably retained withinsaid casingf andmounted on said tumbler means and proiectable intofsaid sleeve 1 andbarrel to prevent rotation-ot said barrel and sleeve andcomprising a'neck having a depending iia'nge, means for rotatably guiding saidsleeve, said tumbler means adapted to shift said driving Y meansto'unlock said barrel although said driving means in partnprojectsthrough'said expanded portion Vto prevent rotationjof-said sleeve, said,barrel adapted to be rotated relative to saidfsleeve te .permit thesides of said reduced polziln "to straddle said neck, '-said ilang'e;uponrjota'tion 'of said barrel -relative to-saidsleeve adapted-to beinterposed between said barrelfand sleeve tolprefl ','means from saidbarrel.

vent-saidA drivingxeans to be projected out of said sleeve, said eeveconstituting-means to prevent projection of said tumbler means out of'said sleeve when said ange cooperates with said sleeve to prevent `said.driving means to be projected foullylout of said sleeve.

17. In a lock, a casing, a barrel rotatably carried by said casing, asleeve interposed .between said casing and barrel and comprisingaplurality of spaced ,slots each having an expanded and a constrictedportion, a rotatable ring mountedon said barrel and in front oi saidsleeve, driving means adapted to project through said expanded yportions of said slots and cooperating with saidl sleeve and barrel toprevent rotation'thereof, and" tumbler means for actuating saiddriving'nieansto removethe latter out of said barrel and'in part vintosaid constricted portions to permit rotation o 4of said barrel relativeto said sleeve and to cause saidA driving means ,to interlock withportions of said sleeve adjacent said constricted portions to preventremoval of driving means from said sleeve.

1'8.fIn a lock, a casing comprising a shell' andA a drill resistingbushing mounted on said shell, a key receiving barrel comprising a shankand la drill resisting collar mounted on said shank, a -sleeve mountedon. said barrel and Aincluding a plurality of butterfly shaped slotseach having an enlarged portion and oppositely extending narrowed'portions, a ring rotatably mounted on said barrel to prevent jammingoi?r said sleeve slidablespring controlled driving means movably vguidedin said casing and adapted .to be received by said expanded portions andshank to prevent rotation of ,said'sleeve and barrel.` and tumbler meansfor actuating said driving means. 19. In a lock, `a casing, a keyreceiving barrel, a sectional sleeve interposed between sai'dcasingVandfnarrel. and havingA a plurality of circumferentially disposed andspaced slots each comprising an expanded portion and communicating op- 1a member mounted on said barrel-and dening l t includ-- with said shanka gap a d having a ing an expanded and a c nstricted po ion, tum-l bljermeans 'slidably guided in said barrel, ands slidable driving meansguidedin said casing and I proiectable through said expanded portion an lpositely and laterally extending reduced por-` Ainto said barrel andcontacting said tumbler means, said driving means havingj'a ilange and aredced part', said barrelfiupon slight rotation bier means causing saidexpanded portion to be .disposed in said gap and between saidA shank andthereof and uponsufilcient elevation of said'tum shifted in a directionaway `from said reduced memberA to prevent removal or 'said driving 21.-In a'c'ylinder lock, a casing, a key' receivfing plug rotatable withinsaid casing and com-I "prising a sleeve having al circumferentially.an-v '-ranged slot having. 'an expandedopening and vco'n imunicatinglaterally extending narrow openings, tumbler .means slidably guided` insaid plug, and ldriving means slidably guided by said casing and bywalls of said expanded opening and contacting said tumbler means andincluding an intermediately disposed depending-reduced part, said plugupon slight rotation thereof `and upon sufficient elevation of saidtumbler means causingsaid expanded opening to be shifted in a' directionaway from said depending reduced part 10 to permit one oisaid narrowopenings to move in a direction towards said reduced part to receive thelatter whereby'a ypart of said `sleeve adjacent said` last mentionednarrow opening movably interlocks with spaced upper and lower portionsof` said driving means to prevent removal of th latter from said plug.

22.v In a cylinder lock, a casing, a key receiving plug rotatable withinsaid casi-ng and comprising a shank, and a sleeve surrounding saidshank- 2 and defining -therewith a gap and having a circumferentiallyarranged slot comprisingan ex y panded opening and a narrow-opening,tumblermeans slidably guided in said plug, driving means projectablethrough said expanded openlng and slidably guided in said casing andcontacting said tumblermeans, said driving means having a ldependingreduced part and a flange, said plug upon slight rotation thereof andupon suilcient elevation of said tumbler means c'ausfing' said expandedopening to be shifted slightly in 'a direction away from said dependingreduced part -to permit said arro'w opening to move in a directiontowards said reduced part to*v receive the latter whereby said flangeis'disposed'in said gap vand below butadjacent a part of said sleeveadjacent said narrow opening to prevent sernovalv of said driving meansfrom` said sleeve, said sleevei and dependingl reduced part having meansto limit rotation of said plug when said depending re` 40 duced partis'disposed within said narrow open' ing. v

23. In a cylinder'lock, a casing, a. plug rotatable within said casingand comprising a reduced 4shank and a vsleeve spaced from said shank andv.having a slot including an expanded opening and narrow and .oppositeopenings extending laterallyA 'of' said expanded opening, tumbler meansslidably guided in-said plug, and slidable driving means guided in saidcasing and contacting said tumbler means, Asaid `driving means having aflange and a' reduced part, said plug upon slight rotation thereofwand-upon suiiicientelevation of said tumbler mans causing-said'expanded open-1 "ing to be shifted in 'a direction awayirom said reducedpart to permit one of said narrow open-'- g vent rotation of said plugwhen saidv sleeve is `lint'erlocked withvv said. driving means.

24. In a cylinder lock,'a casing, key receivingv rotatable meansrotatably guided in said. casing" and including an expanded'openingvand; a reduced opening adjacent `said expanded opening,

"driving means slidably guided in `said casing and .comprising a reduceddepending'part, tumbler means lslidably' guided -lnsaid rotatable meansfor elevating saiddriving means above 'said rotatable means'luponinsertion of a key properlymating withrsaid tumbler means into saidrotatjable means; sprlngmeans for-,projecting said partto limit rotationof said'plug.

driving means at least in part through said expanded opening and intosaid rotatable means upon lwithdrawal of said key to prevent appreciablerotation -of and thus lock saidi rotatable means against rotation, saidIrotatable means when locked adapted to be slightly rotatablydisplaceable in respect tosaid casing to slightly offsetsaid drivingmeans and tumbler means relative to each other, said tumbler means inthe oifset relation Athereof in respect to said driving 10 -means andupon suiilcient elevation thereofv adapted' to lift said driving meansand displace said depending part into said reduced opening,

and means cooperating with said depending part to prevent rotation ofsaid rotatable means rela- 15 'tive to said casing.

25. In a cylinder-lock, a casing, a plug rotatable Within said casing'and comprising a member having a slot including anexpande'd and areduced opening, tumbler means slidably, guided 20' Ato receive theklatter to permit rotation of said 30 plug relative to said casing, saidreduced opening having a wall cooperating with said reduced 26. In acylinder lock, a casing, a plugrotatable within said casingand.comprising arshank, a 35 member interposed between said shank andcasing and having a slot substantially normal tothe longitudinal axisthereof and including an ex-v ypanded and a reduced portion,'tumb1erm'eansJ slidably guided in said plug, and slidable driving 40 means in-longitudinal alinemnt with'fsaid tumblermeans and guided in. saidcasing and contacting said tumbler means, said drivingmeans having aange and a reduced part, said-plug upon slight rotation thereof and uponsuiliciet elevation of said tumbler meansz causing said expanded'portion to be shifted in va direction awayfrom said reduced part topermit said reduced portion of said slot to movei "direction toyvardssaid reduced part to recelwA ".the latter whereby saidv flange is'interposed between said shank and member to causey said driving meansof said driving means from said member and from said plug, -said plug inthe interlocked' relation 55 .of said Vtlrivlng means and member adaptedto ,be-`

rotated relative to said casing whereby said tumbler means isyappreclably olut-lof/said' alinement with said driving means,and m ansto limit rotation of sai-d plug when saidydrl rng means is` .6o yvinterlocked with said member. 27. In a cylinder lock,.a casing, a key'receiving l.

pl rotatablewithin said casing and comprising a barrel having a shankand a curved member spaced from said 'shank and including a cir-4 65'cun'fii'erentially-4 arranged -slot havinggan ex# panded opening andlaterally extending reduced openings, tumbler means slidably guided insaid barrel, and"drivlng means slidably guided in said casing andcontacting said tumbler means, said 70 driving means having. a-dependingreduced part and a dlange, said plug upon slightrctation thereof andupon suiilcientelevationof'said, tumbler- `means causing said expandedopening to be shifted lin a direction -away from said depending l75aimons reduced part permit one of said reduced openings'to move in adirection away from said reduced part and another of said reducedopenings to move in a direction vtowards said reduced part 'fto receivethe latterwhereby said ange is intere posed between said member andshank and below a part oi' said sleeve adjacent said last mentlonedreduced opening to prevent removal of said driving means 'from saidplug.

28. In a cylinder lock, a casing, a key receiving plug rotatable withinsaid casing and comprising a barrel-having a reduced shank and a splitsleeve surrounding said shank and includ. ing oircumferentially arrangedslots dbiining centrally arranged expanded openings and laterallyextending reduced openings, tumbler means slidablyV guided in saidbarrei'drivingmeans pr'ojectable through said expanded openings andslidably .guided in said casing and contacting said tumbler means, saiddriving means having.

means to permit one or more. of said reduced openings to move in 'adirection towards said reduced means to receive the latter whereby saidflange means is interposed between said shank and sleeve and saiddrivingmeans is interlocked with said sleeve to prevent removal thereoffrom Asaid plug, said plug in theinterlocked relaticn4 of said drivingmeans and sleeve adapted'to be.

rotated until atfleastione' end of said reduced openings strikes'saidredueed means.

29. In a cylinder lock, a casing,.a key'receivling. plug rotatablewithimsaid-casing and comprising a barrel having a shank and a splitsleeve j surrounding and spaced from said shank and in. cludingcircumierentiaily arranged and spaced ,slotseach dening an expandedopening and a narrow opening, a plurality of' tumbler means slidablyguided in said barrel, and a vplurality i .of driving means slidablyguided inf-said casing f and prcjectable through said expanded openingsand contacting and normally in longitudinal allnement with said tumblermeans, said driving means each having a depending `reduced part and aflange, said vplug .upon slight rotation thereof and upon suiilcientelevation of said tumbler means causing said expanded openings to beshiitedin a direction awayfrom said depending reduced parts to permitsaid narrow openings to move in a. direction towards said reduced partsto receive the latter whereby said ilanges are disposed between saidshank and sleeve to. cause said driving means to interlock with saidsleeve to prevent removal of said driving means from said plug althoughpermitting said sleeve to be rotated relative to said vcasing until oneend .of

one of said narrow openlngsstrikes at least one A.

pletely out of said alinementwith said means'.

30. In a cylinder lock, a

ing a barrel having a shank, a member spaced Afrom said shankand carriedby said ban-@1 and comprising spaced circumfer/entlally arranged slotmeans having .centrally disposed expanded means and oppositeiy extendingreduced means in ,communication with. said expanded means,

. ers slidably guided in said casing, a'key receiving plug rotatable.within said casing .an'd com'pris--A tumbler means slidably .guided in.said barrel, and driving means priectable through said expanded meansand intosaid shank and slidably guided in said casing and normallycontacting said tumbler meansvand having a depending reduced part and ailange, said plug upon slight rotation thereof and upon suillcientelevation, of said tumbler means causing one of said reduced means to bemoved in a direction towards said depending reduced part to receive thelatter whereby said ilange is disposed out of said shank and betweensaid barrel and member and cooperatingwith a part ofthe latter toprevent removal of said driving means from said plug although permittingthe latter to rotate relative t6 said casing, and means to limitrotation of said plug relative to said casing.

31. I a cylinder lock, a casing, a key receiving plug rotatable withinsaid casing and comprising -a barrel. a member mounted ron said barreland having a plurality of spacedand circumferentiaily arrangedslots eachhaving an expanded opening and alined and opposltely extending narrowopenings, a 4plurality of driving means slid'- ably guided 1n seidcasing end ,proiectable through said expanded openings and into saidbarrel e to prevent rotation. of said barrel .and sleeve and eachcomprising a reduced part, a plurality ofslidable tumbler means forlifting. said driving means to remove the latter out o! said barrelfollowing slight rotation of the latter relative to said casing toposition said reducedparts of said driving means within corresponding.

narrow openings of ysaid slotsi to pei-mit rotation of said memberrelative to said casina', and means cooperating with saidreduced-'partito limitrotafj tion of'said member in'respect to saidcasing; ,32. Iny a cylinder lock, a casinl. key receiving rotatablemeans .guided by 'said easing and in'.v

cluding a plurality of expanded openingsiand a pluraiityjof reducedopen'ii a plurality ofl drivprisms a'redueed denendlnspartpa nlurslitttumblermeans slidably in said rotatable and each .com-

mated witnfsnd tumbler means. .mtosniafxntatable means to Del'mgthclatter to mit 1.91*

ative to said causing.y andsming 'for-muys; -ing said drivers at leastin part intoeaidjex panden openinssf'to' lock said ratatahlecsiesnl"against appreciable rotation relative eas-.- in'g, saidrotatablemeans'adapted to slightly rotatedin the lockedrelation thereofrelative to said casing to slightly onset the longitudinal axistudinalaxis oi said tumbler means, means' in the .offset relationthereofin to said depending parts. adapted to be to arrange saiddepending parts in said reduced openings, said rotatable means havingportions Yforming ends of said reduced openings cdopentportion, splurality of driving means within and .bly b ysaid casing and. each.

of said depending 'parts in repectto- Inglis' nimma v 3. In a cylinderlock, a \casing,a plug comprising a key receiving barrekrotatably bysaid casing-and including 'areduced .and a sleeve concentricallymountedon relpanddeiiningwith said reduced a la .and includingablurality ofspaced and circumf .'g

a reduced depending part, substantially disc shaped members disposedadjacent said depending parts, and a plurality oi tumbler means foractuating said driving means, and spring means acting on said driving'means to project the latter, said members and said depending-reducedparts through` expanded portions of said slots and into said shank forlocking said sleeve and barrel to prevent appreciable rotation ofsaidplug relative to said casing, said barrel in the locked relation ofsaid plug adapted to be slightly rotated relative to said casing, sai dtumbler means in the locked relation of said plug adapted to elevatesaid driving means and members to arrange said reduced depending partsat least in part within said gap outside of said shank and within saidreduced portions of said slots to permit rotation oi' said plug, saiddepending parts and said reduced portions oi' said slots constitutingmeans to prevent rotation of said plug relativeto said casing.

34. In a cylinder lock, a casing, a key receiving plug ineludingaplurality of circumferentially arranged slots each .having an expandedportion and a laterally extending reduced portion, a plurality ofdriving means .within and slidably guided by said casing and eachvcomprising a depending reduced part, a plurality of intervening membersdisposed adjacent `said depending reduced parts, tumblervmeans. foractuating said intervening members to elevate said driving means, springmeans acting on said driving means to project said driving means withsaid intervening members through said expanded portions and into saidplug for locking the latter to prevent appreciable rotation thereofrelative to said casing, said plug adapted to be slightly rotatable inthe locked relation ,thereof relative to said casing, said tumbler meansin the locked relation of said plug adapted to elevate said intersvening members and dispose said reduced depending parts at least'in partwithin. said reduced portions of said slots to permit rotation of saidplug, and means to limit rotation of said plug .45

when said reduced parts are within said reduced portions.

35. In a cylinder lock,'a casing, a key receiving barrel rotatable.withinsaid casing, a sleeve mounted on said barrel and'having acircumferentially arranged slot comprising an expanded opening andopposite and Lreduced openings, spring .controlled driving meansslidably guided in said casing and projectable-in part through saidexpanded opening and into said barrel to prevent rotationofA said sleeveand -barrel and comprising agnck, and tumbler means slidably guided insaid barrel, said driving means having an'intervenor slidably guided inysaid barrel and interposedbetween said neckand tumbler means, the lattercooperating with said' intervenor to lift said neck from said barrel andinto one'of said reduced openings to permit'rotation oi.' said sleeverelative to said casing, said neck and one of said vreduced openingsconstituting means to limit rotation o! said sleeve relative to' saidcasing. l

36. In a cylinder lock, a casing, a key receiving barrel' rotatablewithin said casing, a movable sleeve mounted on said barrel and having acincumferentially arranged slot comprising-an expanded opening andreduced 'openings in corn-l munication with said expanded opening,spring controlled driving means slidably guided in said v'casing andprojectable in part Vthrough said expanded opening and into said barrelto prevent rotation of said sleeve and barrel and comprising a neck,tumbler means slidably guided in said barrel to lift said driving meansfor positioning said .driving means. out of said barrel and said neckinto one of said reduced openings to permit rotation of said sleeverelative to said barrel, and a lost motion connection between saidbarreland sleeve comprising pin means carried by said barrel and a. slotarranged in said sleeve to permit appreciable rotation of said barrelrelative to said sleeve, said last mentioned slot having a wall adapted'to 'be engaged by said pin means to/rotate said sleeve during furtherrota.-

tion of said barrel.

37. In a cylinder lock; a casing, a key receiving barrel rotatablewithin said casing, a sleeve roneck, a plurality oi' tumbler meansslidably guid-v ed in said barrel, said driving means having interveningmeans interposed between said necks and tumbler means and cooperatingwith said necks for positioning the latter out of said barrel and incorresponding reduced openings of said slots to permit rotation of saidsleeve relative to said casing, and a lost motion connection betweensaid barrel and sleeve to permit said barrel to rotate relative to saidsleeve, said connection comprising pin .means carried by said barrel anda slot arranged in said sleeve to permit appreciable rotation of saidbarrel relative to said sleeve, said last mentioned slot having a walladapted toV be engaged by said pin means to rotate said sleeve duringrotation of said barrel, one or more of said reduced openings havingmeans cooperating with one or more of said necks to prevent bodilyrotation of said barrel and sleeve.

3,8. In a cylinder lock, a casing, a key receiving barrel havingareduced shank rotatable within said casing, a sleeve movably mounted onsaid barrel and spaced from and surrounding said Ashank and. h aving aplurality of circumferensaid barrel to prevent rotation Ioi! said sleeveand barrel and each comprising a neck having a depending.v ilange, aplurality of tumbler means slidably guided in said barrel for -liftingsaid driving means subsequent'to slight rotation of said barrel relativeto said casing to position said necks in the corresponding'narrowopenings of /saidslots and said driving' means out of. said .barrel todispose said flanges on the exterior suriaceof said `shank and betweensaid vbarrel and sleeve to permit rotation of said shank 'relative tosaid sleeve, and a connection for said barrel and sleeve to movecorresponding ends of vsaid'corresponding narrow openings .towards saidnecks to permit) spaced sides of said last mentioned narrow openings tostraddle said necks whereby spaced portionsv of said sleeve overlapsaid'iianges to prevent removal of said driving annoso A means from saidsleeve, said ends-constitutingf means cooperating with said necks tolimit rotational displacement ot said sleeve relative to .said casingwhen said ilanges are out of said barrel and interposed between said.shank and sleeve. i

39. In a lock.' a casing. a key receiving barrel rotatably supported bysaid casingy and comprising a reduced shank, a sleeve` rotatably mountedon said barrel and dening with said shank a gap. aloose connection iorrotatably driving said sleeve on said barrel, said sleeve having a`circumi'erentially arranged slot comprising an f expanded opening andoppositely extending reduced openings, tumbler means slidably guided insaid' barrel, and spring controlled driving means slidably guided insaid casing and projectable into said expanded opening and shank toprevent rotation oi' said sleeve and barrel, .said driving meanscomprising neck means and flange means. Bild bplrel adapted to beslightly rotated relative to said sleeve to place said driving meansunder stress,said tumbler means adapted to be actuated to raise s aiddriving means out oi' said i shank to position' said flange means insaid gap for slidably'lnterlocking a portion of said sleeve adjacent oneoi said reduced openings with a portion oi said driving means to ypermitsaid barrel to be rotated relative tosaid sleeve when said driving meansis out of said shank and cause said connection to rotate said sleeveupon rotationoi' said barrel, andmeans to limit unitary rotationaldisplacement of said sleeve and barrel.

40. In a lockra casing comprising a shell and a drill `resisting bushingmounted on said shell, a key receiving barrel comprising a shank and .adrill resisting collar mounted on said shank, a sleeve mounted on saidbarrel and including a plurality oiIv spacedslots each having anexpanded opening and oppositely' extending narrowed openings, aringrotatably mounted on said barrel in front oi' said sleeve to guard thelatter, slidable spring controlled driving means movably guided insaidcasing and adapted to be received by said expanded openings and shank inprevent roi tation ot said sleeve'and barrel. and tumbler meansi'or'actuating said driving r'neans.

4l. In a lock, a casing, a key-leiving barrel..

a longitudinally split rotatable sleeve having a a: connection i'orrotating said sleeve with said barrel ati least in one directionrelative to said casing during interlocking relation of said drivingmeans and sleeve, and means to 'prevent further rotation oi.' ,saidsleeve relative to said casing in said direction to preclude rotation ofsaid barrel in a similar direction.

42. In a cylinder lock, a casingfkey rotatable means rotatably guided bysaid casing and v'including an expanded opening and oppositely arrangedand spaced reduced openings; a driver slidably guided in said casing andcomprising a reduced depending part, tumbler means slidably guidedinsaid rotatable means for elevating said driver above said rotatablemeans 751 uponainsertion of a key Properly mated with said penings oi!said sleeve to prevent tumbler means to rotate sam rotatable means topermit the latter to rotate relative to said casing. and spring meansfor moving said driver into said' expanded opening to lock saidrotatable means against appreciable rotation relative to saidcasing,said rotatable means adapted to be slightly rotated in the locked'relation'thereoi relative to said casing to slightly odsetthelongitudinal axis oi' said dependingpart in respect to thelongitudinal axis of said tumbler means, said tumbler means'in-theoffset relation thereof in respect to said depending part adapted to beelevated to raise said means and dispose saiddependopenings extending inoppositedirections, a plumeans to prevent unitary.' rotation oi saidplug Y rot-ation of said )barrel and sleeve, and spring means to holdsaid drivers-in contact with said tumblers, said drivers havingdepending parts',

said drivers havingintervening means slidably guided in said shank andadapted to' be intertudinally odset relation, of said tumblers and drlversl to prevent removal oisaid drivers -i'rom said plug,corresponding narrowed openings of said slots having sides forstra'ddllng said .depend- 'ing parts to permit said sleeve to rotaterelative 'to said drivers when said intervening means is interposedbetween said shank and sleeve, said dependingparts cooperating withcorresponding narrowed openings of said slots to limit rotation 4 5. AIn a cylinder lock, a casing, a key barrel having a shank, a membercarried by said barrel and'provided with a curved slothaving an expandedopening and oppositely extending'nar- -row openings. means normally inlalinement with saldi-tumbler means and projectable into expanded toprevent posed between vsaid shank and sleeve in the longio5 ,of saidbarrel and sleeve in respect to said casing y in the longitudinallyoii'set relation oi said tum-v rotauon'of said barrel and member andslidably guided in said casing and having means to closely Vstralddle apart of said member adjacent one of 'said narrow openings to preventremoval of said vdriving means from said member ln the offset relationthereof with'said tumblermeans, and tumbler means slidably guided insaid shank for actuating said driving means.

46. In a cylinder lock, a casing. a sleeve compilsing aciroumferentially disposed slot having an expanded opening andoppositely extending narrow openings, a barrel within said sleeve,driving means slidably guided in said casing and normally projectableinto said expanded opening and barrel to prevent rotation of said sleeveand barrel and having means adapted to be removed from said barrel tointerlock with a part of said sleeve adjacent one of said narrowopenings. when said barrel is rotated in one direction and adapted tointerlock with another part of said sleeve adjacent an opposite narrowopening of said slot to prevent removal of said driving means from saidsleeve if said barrel be rotated ln a counter direction, and tumblermeans slidably guided in said barrel for actuating said driving means.

47. In a cylinder lock, a casing, a plug rotatable within said casingvand comprising a slot having a central enlarged opening andcommunieating oppositely extending narrow openings,

tumbler means slidably guided in said plug, drivingv means slidablycarried in said lcasing, and spring means for normally holding saiddriving means in said expanded opening .in the alined relation of saidtumbler and driving means to lock said plug against rotation, said plugadapted to be rotated slightly in one direction to oifset said tumblermeans in respect to said 'driving means in the locked relation of saiddriving means and plug to place said driving means under stress, saidtumbler means in the stressed lrelation of said driving'ineans adaptedto elevate the latter to permit a. part of said plug adjacent onev ofsaid vnarrowopenings to rotatably interlock with a part of said drivingmeans to prevent removall of the latter from said plug, said plug in theinterlocked relation thereof with said driving means adapted to furtherrotate in said direction relativeto said casing wherebyy saidinterlocking re- `lation of said plug and driving means is continued,

one ofv said narrow openings having means cooperating with said drivingmeans to limit rotational displacement of said plug in said directionduring said interlocked relation.

, 48. In a cylinder look, a casing, a plug rotatable within said casingand comprising abarrel having a reduced shank, a sleeve surrounding saidbarrel and provided with a plurality of slots each having an enlargedopening and communicating andloppositely extending c lrcumferentiallyarranged narrowed openings, tumbler means slidably guidedin said barrel,driving means slidably carried i`n said casing and including lower por'-tions projectable into-said enlarged openings and shank to'lock saidsleeve and barrel against .rotation when' said lower portions are alinedwith said tumbler means, said `plug adapted to be slightly rotatedIclockwise or counter-clockwise to place said lower portions understress and offset in respect to said tumbler means, said lower portionseach comprising a depending portionand a flange, said tumblers in theoflset relation thereof with said driving means ,adapted to actuate saiddriving meansto position said llanges severally `outof said shank andbetween said barrel and sleeve whereby' parts of said sleeve adjacentcorresponding narrowed openings of said slots straddle said dependingportions to permit rotational displacement of said shank relative tosaid casing when said fiangesare interposed between said barrel andsleeve, means'to rotate said sleeve upon rotation of said shank, andmeans to llimit unitary rotational displacement of said shank andsleeve.

49. In a cylinder lock, a casing having a longitudinally disposed bore,a key receiving plug comprislng a barrel rotatably guided within saidbore, tumbler means disposed transversely of said' plug and slidablyguided in said barrel, driving means slidably guided in said casing andnormally in longitudinal axial alinement with said tumbler means, andspring means to hold said driving means against said tumbler means, saidplug having a sleeve comprising one or more circumferentially arrangedslots each provided with an enlarged opening andfoppositely extendingnarrow openings, said plug on slight rotation thereof adapted to .shiftsaid tumbler means out of longitudinal axial alinement with saiddrivlngmeans whereby said enlarged openings are slightly displaced to permitthe walls thereof to be in engagement with said`driving means to holdthe latter under stress, said tumbler means adaptedto raise said drivingmeans when said walls are in engagement with said driving means toposition the latter out of said barrel to be received in part withinadjacent narrow openings of said slots whereby parts of said sleeveadjacent said adjacent narrow openings receivingvsai'd driving means arerotatably interlocked withsaid'drivlng means to prevent removal of saiddriving means from said sleeve.

50. In a. cylinder lock,l a casing, a key receiving barrel rotatablewithin said casing, a sleeve mounted-on said barrel and having aplurality of spaced and circumferentlally arranged slots each comprisinga centrally disposed expanded opening and laterally and oppositelyextending narrow openings, a plurality of resiliently controlled driversslidably guided in said casing and proiectable into said expandedopenings and barrel to prevent rotationof said sleeve and barrel andeach driver of said plurality comprising .a neck projectable into anadjacent narrow 'opening of said slots -to permit rotation of saidsleeve relative to said casing andeach driver of said pluralitycomprising a iiange depending from and laterally extending be# yond acompanion neck .thereof and projectable' outside of said barrel andunderneath an adjacent narrow opening ofl said slots to prevent removalthereof from said sleeve, a plurality* of tumblers slidably guided insaid barrel, a driving connection between said barrel and sleeve torotate said sleeve upon rotation. of said barrel when said necks arewithin corresponding narrow openings1 of said slots, and means to limitrotation of said sleeve and barrel when the latter is rotated in onedirection and when said necks are within-said corresponding narrowopenings.

51. ma pmtumbier lock, a casing having a' bore, a key receiving barrelrotatably guided within lsaidbore, a/member within said bore and havingslot means comprising expanded means and laterally extending constrictedmeans, and pin tumblers comprisingdriving pins and tumbler pins, saiddriving pins being slidably' guided-in said casing and proiectable intosaid expanded means' and barrel to prevent rotation of said ba'- rel andhaving reduced means', said tumbler pins being slidably guided in saidbarrel for elevating said driving pins to permit said constricted meansto move `towards and receive said reduced means whereby said barrel ma'ybeY rotated relative to said casing, and means to prevent rotation ofsaid barrel relative to said casing when said reduced means is disposedwithin said constricted means. 52. In a pin tumbler .1ock,'a casinghaving a L bore, a key receiving barrel rotatably guided within saidbore', a member interposed between said casing and barrel and havingslot means comprising expanded means and laterally extending constrictedmeans. and lpin tumblers comprising driver pins and tumbler pins, saiddriver pins being proje'ctable `into said expanded means andbarrel andslidably guided in said casing and having reduced means and flange 175means and said tumbler pins being slidably guided i'nsald barrel forshifting said iiange means and reduced means from said barrel wherebysaid Areduced means is received by said constricted means to permitrotation of said barrel relatiye to said casing and whereby said iiangemeans is disposed slightly below and adjacent said constricted means tocooperate with said -member to prevent withdrawal o'f said driver pinsfrom said member. l l 53. In a pin tumbler lock, a casing having a vbore, a key receiving `barrel rotatably guided ,'within said bore andhaving a reduced shank, a member spaced from said shank and interposedbetween said casing and barrel and having slot means comprisingyexpanded Vmeans and laterally extending constricted means, and pintumblers comprising driver pins and tumbler pins, said driver pinsbeingprojectable into said expanded means and barrel and slidably guidedin said casing and -having reduced means and iiange 4 means and saidtumbler pins being slidably guid ed in said barrel for shifting 'saidflange means and reduced means from' saidL barrel whereby cERTIIcrPatent l'No'. 2 ,111,098.

It isherebyy certified that error SAMUEL said reduced means is receivedby said constricted means to permit rotation of said barrel relative tosaid casing and whereby said ilange means is disposed between saidmember and shank and slightly below and adjacent said constricted meansto cooperate with said member to prevent withdrawal o1' said driver pinsfrom said member.

54. In a pin tumbler lock, a casing, a key receiving barrel rotatablewithin said casing, said casing and barrel having alineable bores, amember within said lock and having slot means comprising expanded slotmeans and constricted slot means, and pin tumblers in said lock slidablyguided in said bores and extending through said bores and through saidexpanded slot means to lock said casing, barrel, and member together,

said pin tumblers each comprising a pluralityv of pins slidably guidedin said bores, one of said `pins having a reduced part capable ofmovement insaid constricted slot means to prevent unlock ing rotation ofsaid barrel.

In a' pin tumbler lock, a casing, a key receiving barrel rotatablewithin said casing, said casing and barrel having alineable bores, amember within said lock and having slot means comprising expanded slotmeans and constricted slot me'ns, and pin tumblers insaid lock slidablyguided in said bores and extending through said bores and through saidexpanded slot means to lock said casing, barrel, and member together,said pin tumblex's each comprising a plurality of pins slidablyguided-in said bores, one of said pins having a reduced part capableofmovement in said constricted slot means to prevent unlockingrotation'oi said barrel, s aidlast mentioned pin having meansl 'forinterlocking with said member at said constricted slot means.

, SAMUM.- SEGAL.

YYor CORRECTION.

l Maz-c1115; '1958, sEeAL. -A

appears the prntedispecifieation of'th'e .above numberedpatentlre'qniring correction as follows Pagell, secofnd colinmi.,11ne'75, claim )45, before, 'u'driving" insert the words. comme. tuin;'bler nennst.; page 12F, first column, line' 7., saineclaimI1.5;?beforeA 1 "tum-f bier. insert said amilbefore` lslidaby'f.insertfbengg and the ,Said yLetters 'Patent shouid'be read with thesecorrections thereinvthat thesame nay-conform to .the record of the case.in the 'Patent soffice. r`

signegmi genialer-.hrs 126th eayprfipil, i. D'. y1958.V

Henry Yad ndale, i. Actinglcommissioner of Patents whereby said barrelma'y beY rotated relative to said casing, and means to prevent rotationof said barrel relative to said casing when said reduced means isdisposed within said constricted means. 52. In a pin tumbler .1ock,'acasing having a L bore, a key receiving barrel rotatably guided withinsaid bore', a member interposed between said casing and barrel andhaving slot means comprising expanded means and laterally extendingconstricted means. and lpin tumblers comprising driver pins and tumblerpins, said driver pins being proje'ctable `into said expanded meansandbarrel and slidably guided in said casing and having reduced meansand flange 175 means and said tumbler pins being slidably guided i'nsaldbarrel for shifting said iiange means and reduced means from said barrelwhereby said Areduced means is received by said constricted means topermit rotation of said barrel relatiye to said casing and whereby saidiiange means is disposed slightly below and adjacent said constrictedmeans to cooperate with said -member to prevent withdrawal o'f saiddriver pins from said member. l l 53. In a pin tumbler lock, a casinghaving a v bore, a key receiving `barrel rotatably guided ,'within saidbore and having a reduced shank, a member spaced from said shank andinterposed between said casing and barrel and having slot meanscomprisingy expanded Vmeans and laterally extending constricted means,and pin tumblers comprising driver pins and tumbler pins, said driverpins beingprojectable into said expanded means and barrel and slidablyguided in said casing and -having reduced means and iiange 4 means andsaid tumbler pins being slidably guid ed in said barrel for shifting'said flange means and reduced means from' saidL barrel whereby cERTIIcrPatent l'No'. 2 ,111,098.

It isherebyy certified that error SAMUEL said reduced means is receivedby said constricted means to permit rotation of said barrel relative tosaid casing and whereby said ilange means is disposed between saidmember and shank and slightly below and adjacent said constricted meansto cooperate with said member to prevent withdrawal o1' said driver pinsfrom said member.

54. In a pin tumbler lock, a casing, a key receiving barrel rotatablewithin said casing, said casing and barrel having alineable bores, amember within said lock and having slot means comprising expanded slotmeans and constricted slot means, and pin tumblers in said lock slidablyguided in said bores and extending through said bores and through saidexpanded slot means to lock said casing, barrel, and member together,

said pin tumblers each comprising a pluralityv of pins slidably guidedin said bores, one of said `pins having a reduced part capable ofmovement insaid constricted slot means to prevent unlock ing rotation ofsaid barrel.

In a' pin tumbler lock, a casing, a key receiving barrel rotatablewithin said casing, said casing and barrel having alineable bores, amember within said lock and having slot means comprising expanded slotmeans and constricted slot me'ns, and pin tumblers insaid lock slidablyguided in said bores and extending through said bores and through saidexpanded slot means to lock said casing, barrel, and member together,said pin tumblex's each comprising a plurality of pins slidablyguided-in said bores, one of said pins having a reduced part capableofmovement in said constricted slot means to prevent unlockingrotation'oi said barrel, s aidlast mentioned pin having meansl 'forinterlocking with said member at said constricted slot means.

, SAMUM.- SEGAL.

YYor CORRECTION.

l Maz-c1115; '1958, sEeAL. -A

appears the prntedispecifieation of'th'e .above numberedpatentlre'qniring correction as follows Pagell, secofnd colinmi.,11ne'75, claim )45, before, 'u'driving" insert the words. comme. tuin;'bler nennst.; page 12F, first column, line' 7., saineclaimI1.5;?beforeA 1 "tum-f bier. insert said amilbefore` lslidaby'f.insertfbengg and the ,Said yLetters 'Patent shouid'be read with thesecorrections thereinvthat thesame nay-conform to .the record of the case.in the 'Patent soffice. r`

signegmi genialer-.hrs 126th eayprfipil, i. D'. y1958.V

Henry Yad ndale, i. Actinglcommissioner of Patents

